@keyframes jump {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.landmark {
    position: relative;
    display: block;
    width: 30px;
    height: 30px;
    background-image: linear-gradient(0deg, red, #ff8484);
    border-radius: 100%;
    margin-top: 10px;
    filter: drop-shadow(0 1px 1px #973340);
    animation: jump infinite 2s ease;
}

.landmark::before {
    content: '';
    position: absolute;
    display: block;
    left: 50%;
    bottom: 0;
    z-index: -2;
    width: 10px;
    height: 10px;
    background-color: red;
    margin-left: -5px;
    transform: scaleX(1.3) translateY(2px) rotate(45deg);
}

.landmark::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 100%;
    top: 50%;
    left: 50%;
    display: block;
    margin-top: -5x;
    margin-left: -5px;
    box-shadow: inset 1px 0 rgba(0, 0, 0, 0.4);
}